Sunday 8 July 2012

Climate Change


Society not ready for heat waves coming with climate change – ‘The power grid can’t handle it’
Health officials are better prepared for heat waves than they used to be, but they have more to do in the face of climate change, experts say.




7 July, 2012

By Oren Dorell, USA TODAY
6 July 2012

Health officials are better prepared for heat waves than they used to be, but they have more to do in the face of climate change, experts say.

"Nationally and internationally we are much more aware of the danger of extreme heat than we were in 1995," says sociologist Eric Klinenberg, author of Heat Wave: A social autopsy of disaster in Chicago, about the three-day heat wave that caused 739 excess deaths and thousands of hospitalizations in 1995.

"We're more prepared than we were in 1995. A lot of Americans are still vulnerable, and our power grid is vulnerable, too."

Medical workers reported few problems related to the past week's heat wave in parts of the USA that suffered extreme temperatures but were spared Friday night's storms that knocked out power to more than 3 million customers.

But in the District of Columbia, where heat and power outages struck together, sick patients at home who rely on electronic medical devices suffered doubly, and hospitals had to improvise, says Bill Frohna, chairman of the emergency department at MedStar Washington Hospital Center. "Before the storm came we saw some heat-related stuff, but once you throw the power issue on top of the heat, families didn't know what to do," Frohna said. "When no one has power they don't have a backup plan."

Even the Washington hospital had a plan for heat and a plan for outages, but not a plan for the two together, Frohna said.

After storms cut power to millions, hospital workers Saturday saw a spike in patients with chronic diseases who need electricity to operate home dialysis units and machines that deliver intravenous fluids, medications, tube feedings and oxygen, Frohna said. […]

In Indiana, where the heat wave has been going strong for a week, 153 emergency patients visited the state's emergency rooms for heat-related issues in all of last week, says Amy Reel, spokeswoman for the Indiana State Department of Health. The number of heat-related injuries has been relatively small because everyone is taking the heat seriously, says Wishard Hospital emergency physician John Boe. "There's more awareness of how dangerous this kind of weather can be," Boe said. […]

Boe, who teaches at Indiana University's Department of Emergency Medicine, says the Chicago heat wave of 1995 was a turning point in his field.

"In our teachings, they always talk about the Chicago heat wave," he said.

Multiple factors led to the high death toll of the Chicago heat wave, Klinenberg says. High humidity combined with triple-digit heat and little nighttime cooling to turn the lakeside city into a furnace. Mayor Richard Daley and the city's fire and health commissioners were away on vacation. And the city failed to implement its plan for extreme heat, Klinenberg says.

High demand for electricity caused outages, and much of the city lost water as residents opened hydrants to cool off and then fought with city officials trying to close them. Most of the fatalities were elderly, isolated bachelors in the poorest sections of town, Klinenberg says.

Even worse disasters happened in Europe in 2003, when 70,000 excess deaths were caused by an extreme heat event that lasted three weeks, and in Russia in 2010, when a heat wave caused 50,000 excess deaths. […]

Klinenberg says cities such as Washington, Philadelphia and New York City are ill prepared.

"We need to make sure that cities can get through the worst heat wave," he says. "In New York City, police officers drive through streets using loudspeakers asking people to turn down their air conditioning during the day. The power grid can't handle it."




Top 20 Cities with Billions at Risk from Climate Change



6 July, 2012

By 2050, more than 6 billion humans are expected to live in cities, according to the United Nations. Ports, which constitute more than half the world's largest cities, will face unique challenges as their populations swell.

More than 130 port cities around the world are at increasing risk from severe storm-surge flooding, damage from high storm winds, rising and warming global seas and local land subsidence. Poorly planned development often puts more people in vulnerable areas, too, increasing risk. About $3 trillion of assets are at risk today, a tally on track to reach $35 trillion by 2070, according to an ongoing study by the Organization of Economic Cooperation and Development.

Here are the 20 port cities most vulnerable to climate extremes, ranked by assets at risk.

For slideshow GO HERE




U.S. Drought Monitor shows record-breaking expanse of drought
More of the United States is in moderate drought or worse than at any other time in the 12-year history of the U.S. Drought Monitor, officials from the National Drought Mitigation Center at the University of Nebraska-Lincoln said today


7 July, 2012

By Kelly Helm Smith, National Drought Mitigation Center; Steve Smith, University Communications

Analysis of the latest drought monitor data revealed that 46.84 percent of the nation’s land area is in various stages of drought, up from 42.8 percent a week ago. Previous records were 45.87 percent in drought on Aug. 26, 2003, and 45.64 percent on Sept. 10, 2002.

Looking only at the 48 contiguous states, 55.96 percent of the country’s land area is in moderate drought or worse – also the highest percentage on record in that regard, officials said. The previous highs had been 54.79 percent on Aug. 26, 2003, and 54.63 percent on Sept. 10, 2002.

"The recent heat and dryness is catching up with us on a national scale,” said Michael J. Hayes, director of the National Drought Mitigation Center at UNL. “Now, we have a larger section of the country in these lesser categories of drought than we’ve previously experienced in the history of the Drought Monitor."

The monitor uses a ranking system that begins at D0 (abnormal dryness) and moves through D1 (moderate drought), D2 (severe drought), D3 (extreme drought) and D4 (exceptional drought).

Moderate drought’s telltale signs are some damage to crops and pastures, with streams, reservoirs or wells getting low. At the other end of the scale, exceptional drought includes widespread crop and pasture losses, as well as shortages of water in reservoirs, streams and wells, creating water emergencies. So far, just 8.64 percent of the country is in either extreme or exceptional drought.

"During 2002 and 2003, there were several very significant droughts taking place that had a much greater areal coverage of the more severe and extreme drought categories,” Hayes said. “Right now we are seeing pockets of more severe drought, but it is spread out over different parts of the country.

"It’s early in the season, though. The potential development is something we will be watching."

The U.S. Drought Monitor is a joint endeavor by the National Drought Mitigation Center at UNL, the National Oceanic and Atmospheric Administration, the U.S. Department of Agriculture and drought observers across the country.

To examine the monitor’s current and archived national, regional and state-by-state drought maps and conditions, go to http://droughtmonitor.unl.edu.





4500 record highs broken: Jet stream pulled up towards Canada, ‘out of whack’ says U.S. meteorologist


7 July, 2012

July 7, 2012 – CLIMATE It’s not that the Midwest hasn’t been extremely hot before, and it’s not that it hasn’t been incredibly dry. But it’s unusual for a vast swath of the Midwest to be so very hot and so very dry for so very long — particularly this early in the summer. 

The current heat wave — which is spurring comparisons to the catastrophic heat of 1936 — is “out of whack,” meteorologist Jim Keeney said Friday in an interview with the Los Angeles Times

“Even on the East Coast today, temperatures are 100 or above” — basically, Keeney said, the heat wave extends from Kansas all the way to the East Coast. “It’s a good chunk of the eastern half of the country, barring the far northern states, of course.  So it’s pretty intense.” 

Temperature records are being broken and residents are suffering in what Keeney called a “corridor of extreme heat,” generally through Nebraska, Kansas, Missouri, Illinois, Indiana and into western Kentucky. 

Heat records are being shattered as are records for the number of days in a row the temperature has hit 100 or higher, he said. Take St. Louis, for example. The last time the city was this hot for this long was in 1936, said Keeney, a meteorologist with the National Weather Service Central Region Headquarters in Kansas City, Mo. 

Then, the city recorded 13 days in a row of temperatures 100 degrees Fahrenheit or over.  That  devastating heat wave of the mid-’30s killed thousands of people and destroyed many crops. The culprit in the current wave is a dome of high pressure that has been hovering over the eastern part of the U.S., said NWS spokesman Pat Slattery in an interview with The Times on Friday. 

It’s kicked the jet stream way to north, in some places into Canada, so there’s no way for the normal rotation of weather systems to get here into the middle of the country, which would bring us some moisture. So drought becomes more and more a major factor.” 

LA Times Weather Channel


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